Kang, Byoung-Wook Lee, Kwanil Lee, Sang Bae Kim, Chul Han 2024-01-20T09:00:25Z 2024-01-20T09:00:25Z 2021-09-02 2014-10 1226-4776 https://pubs.kist.re.kr/handle/201004/126308 We have demonstrated an amplified wavelength-division multiplexed (WDM) passive optical network (PON) by using broadband light source (BLS) seeded optical sources and chirped fiber Bragg gratings (FBGs) based dispersion compensators. Chirped FBGs located at central office (CO) were fabricated and used as channel-by-channel dispersion compensators in order to mitigate the dispersion-induced distortion of both downstream and upstream signals. Owing to a low insertion loss of chirped FBG based dispersion compensator, the optical signal-to-noise ratio (OSNR) of the downstream signal could be improved to be 28 dB. Thus, we re-confirmed that an error-free transmission of 1.25 Gb/s signals over a 100 km single-mode fiber (SMF) link could be achieved with a proposed amplified WDM-PON architecture. We have also evaluated the impact of various noises on the system's performance, and found that the low OSNR of the downstream signal would be a main limiting factor on the Maximum reach of the proposed amplified WDM-PON architecture. From the measured 13 dB improvement in OSNR of the downstream signal compared to our previously-proposed dispersion compensating module based scheme, we believe that the proposed architecture can accommodate a reach of longer than 100 km SMF link easily. English OPTICAL SOC KOREA Colorless Amplified WDM-PON Employing Broadband Light Source Seeded Optical Sources and Channel-by-Channel Dispersion Compensators for > 100 km Reach Article 10.3807/JOSK.2014.18.5.436 1 JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v.18, no.5, pp.436 - 441 JOURNAL OF THE OPTICAL SOCIETY OF KOREA 18 5 436 441 scie scopus kci ART001921806 000344447600002 2-s2.0-84928167784 Optics Optics Article Passive optical network Bidirectional signal transmission Wavelength division multiplexing Fiber Bragg grating